MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f28eb3a5a98a63955599167bc56f778544421f9e96fbb5502caa37e954db0fc. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f28eb3a5a98a63955599167bc56f778544421f9e96fbb5502caa37e954db0fc
SHA3-384 hash: 4fd7176e2ee01922e3a138bf0056190dfe290b93ace9dff7da5a77bae786b42e3c1ad84ba1b6da963f91703a26b78e13
SHA1 hash: 038757eb4a5e3bf1fa863f91e3f9494a074e5302
MD5 hash: c04f6348e7b59525aa07c2cff05891ce
humanhash: comet-november-nuts-maine
File name:c04f6348e7b59525aa07c2cff05891ce
Download: download sample
Signature Formbook
Create hunting rule
File size:787'456 bytes
First seen:2021-08-16 08:08:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:2uBB1MnbmI0rOkAKcc2FOaXaeVIJEl3c4FwcX29jcBX5JOEPpBja:DBgbjLk9cc2FXaJ1U2mBJHPi
Threatray 7'863 similar samples on MalwareBazaar
TLSH T1B6F4BF7171AB8996F51F8A742578BC5003B131F3A9C6893D1B5A614ACFEDE983F4820F
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
147
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
REQUEST FOR QUOTATION00787MT.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-16 06:54:26 UTC
Tags:
encrypted trojan opendir exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/05117016-da36-466a-bfc7-9f21e47504a9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/179444/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/433534d2-f163-4204-988f-56b513c8591f
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/833352
Signature
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: SAM Dump to AppData
Sigma detected: Suspicious PowerShell Invocations - Specific
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 465783 Sample: yIxjWxDphu Startdate: 16/08/2021 Architecture: WINDOWS Score: 100 33 www.narrowpathwc.com 2->33 35 www.goldenstatelabradoodles.com 2->35 37 2 other IPs or domains 2->37 53 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Machine Learning detection for sample 2->57 59 3 other signatures 2->59 10 yIxjWxDphu.exe 3 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\yIxjWxDphu.exe.log, ASCII 10->31 dropped 61 Uses netsh to modify the Windows network and firewall settings 10->61 63 Tries to detect virtualization through RDTSC time measurements 10->63 14 yIxjWxDphu.exe 10->14         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Sample uses process hollowing technique 14->69 71 Queues an APC in another process (thread injection) 14->71 17 netsh.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 45 Modifies the context of a thread in another process (thread injection) 17->45 47 Maps a DLL or memory area into another process 17->47 49 Tries to detect virtualization through RDTSC time measurements 17->49 23 cmd.exe 1 17->23         started        39 www.luvlauricephotography.com 192.185.0.218, 49757, 80 UNIFIEDLAYER-AS-1US United States 20->39 41 www.pcf-it.services 217.160.0.2, 49750, 80 ONEANDONE-ASBrauerstrasse48DE Germany 20->41 43 11 other IPs or domains 20->43 51 System process connects to network (likely due to code injection or exploit) 20->51 25 autoconv.exe 20->25         started        27 autofmt.exe 20->27         started        signatures11 process12 process13 29 conhost.exe 23->29         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8f28eb3a5a98a63955599167bc56f778544421f9e96fbb5502caa37e954db0fc/
Threat name:
Win32.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-08-16 05:25:17 UTC
AV detection:
16 of 46 (34.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r4uowos2tctdsvkzsft3yvxxpbkeiipz5fx3wviczkrx5fknwd6a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
006dcd5baa67723c1d34336ca9d3eb55eb53cdb58999a8c6a3a64b28c2848220
Formbook
2c696217e2b047158bc9be361907f236233e4d7091ee4c0e1f1402247c827498
Formbook
3f9a8485314c2b666caf0a1a729a96cb974780f331ea9baa0c03e7f02035cf05
Formbook
47c26ad6ad20462404f1f13c5be9024a1f602452aca247b7c6de059a09dfa3ee
Formbook
64550a0d3d1c28b1ec50006327a707b7287997aa7ca146153440935a033ccb97
Formbook
6fac6e1f7f8cdd8cec52b2dd7a23fd434084c7d12ef0f04deaa52794d3612ef7
Formbook
7664e0ecf75ceab92dee8e07c7de96d43a136a6cff674895162625b66e0ffe15
Formbook
7b31e4beaeb3665a7e4d0575c0ace2d8d025cdca733d5ad293ee3506918cdde5
Formbook
c9619641b9ca07b139cc64d223eadad4731fcbfce7e0653ce4583b4ea05a686d
Formbook
fb3912c5b687ea7412dc249538d7c02b790f6edde2f23497c05faabd848cb16c
Formbook
+ 7'853 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:n8ba loader rat
Link:
https://tria.ge/reports/210816-etzzbxx4nn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.narrowpathwc.com/n8ba/
Unpacked files
SH256 hash:
5cb790f83b558ca22826675931e0330d6a46acbc79767b8ecf3de8af250f29bc
MD5 hash:
e5f8e96cae02bc58ff001231c44b3838
SHA1 hash:
dd1288c564b617a2b4a07d848cf86db6fd227cee
Link:
https://www.unpac.me/results/ec2e035f-3fa6-44fa-8659-e1a025563141/
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/ec2e035f-3fa6-44fa-8659-e1a025563141/
SH256 hash:
fe75f3ae1c25c484caf5809d380a4102be60001aef157851f4dfe2265a24de2a
MD5 hash:
ca114cf819ebb6743c22b984e72947b2
SHA1 hash:
16dec16a3dafed413cf5e93b18fcf030bb7e7007
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ec2e035f-3fa6-44fa-8659-e1a025563141/
Parent samples :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 hash:
8f28eb3a5a98a63955599167bc56f778544421f9e96fbb5502caa37e954db0fc
MD5 hash:
c04f6348e7b59525aa07c2cff05891ce
SHA1 hash:
038757eb4a5e3bf1fa863f91e3f9494a074e5302
Link:
https://www.unpac.me/results/ec2e035f-3fa6-44fa-8659-e1a025563141/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8f28eb3a5a98/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/8f28eb3a5a98a63955599167bc56f778544421f9e96fbb5502caa37e954db0fc

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 8f28eb3a5a98a63955599167bc56f778544421f9e96fbb5502caa37e954db0fc

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1538384/
Cape
Cape
https://www.capesandbox.com/analysis/179444/

Comments


Avatar
zbet commented on 2021-08-16 08:08:15 UTC

url : hxxp://192.3.152.208/xloader/bin.exe